Historical Rules · 23 January 2015
Rule 205.3n
Official source text from the 23 January 2015 Rules release
Planes have their own unique set of subtypes; these subtypes are called planar types. The planar types are Alara, Arkhos, Azgol, Belenon, Bolas’s Meditation Realm, Dominaria, Equilor, Ergamon, Fabacin, Innistrad, Iquatana, Ir, Kaldheim, Kamigawa, Karsus, Kephalai, Kinshala, Kolbahan, Kyneth, Lorwyn, Luvion, Mercadia, Mirrodin, Moag, Mongseng, Muraganda, New Phyrexia, Phyrexia, Pyrulea, Rabiah, Rath, Ravnica, Regatha, Segovia, Serra’s Realm, Shadowmoor, Shandalar, Ulgrotha, Valla, Vryn, Wildfire, Xerex, and Zendikar.